Improvement in machines for carding cotton or wool



UNITED STATES `PATENT OFFICE.

EBENEZER CRANE AND ALANSON CRANE, OF LOVELL, MASSACHUSETTS.

IMPROVEMENT lN MACHINES FOR CARDING COTTON OR WOOL.

Specication forming part of Letters Patent No. 1,962, dated January 30,1841.

To all whom it may concern:

Beit known that We, EBENEZER CRANE and ALANsoN CRANE, both of the cityof Lowell, in the county of Middlesex and Commonwealth of Massachusetts,have invented a new and useful Machine or Improvement for Carding Cottonor Wool, called Cranes Self-Stripping Carding-llflachine, and we dohereby declare that the following is a full and exact description of thesame, reference being Ahad to the drawings hereto annexed and made apart of this specification, reprev senting a side View of saidimprovement.

A A A A represent the frame of a common carding-machine with the feedingapparatus, doffer, and some of the other attachments.

B B B is the main card or cylinder' with the teeth above the frameexposed or uncovered.

C C C are the top cards of the machine.

D and E are two rollers running on gudgeons resting in a frame or standW at the ends.

F F F is an endless chain or belt, the links of which correspond inlength to the width of the sides of the said rollers, to which links thetop cards of the machine are attached at the ends and revolve with thechain or belt over said rollers.

G is a pulley attached to and moved by they feed-roller of the machine.H is a crank moved by said pulley.

I J K are three sweeps connected together and moved by the crank H.

L is a stripping-card attached at the end to the sweep K and moved byit.

M is a cleaning-card which cleans the stripping-card L.

N N N is the segment of a circle, which supports the chain or belt abovementioned and prevents the top cards attached to said chain or belt fromapproaching too near or pressing upon the main cylinder-card.

O O are adjusting-screws supporting the segment above named andregulating the distance between the top cards and main Cylinder.

P is a belt carried by the pulley G, which drives apulley Q, moving apinion S. T is a gear carried by said pinion, connected with and movingthe six-sided roller D.

U is a box covering the roller D and apart of the chain or belt and topcards, and V is a common roller supporting the chain or belt and topcards.

The operation of this improvement is as follows: The cotton or othermaterial is fed through the feed-rollers and passes over the maincylinder and onto the doer, as in the common carding-machine, but eachof the top cards being attached at the ends to endless chains or beltsinstead of being secured to the frame and made stationary, as has beenhitherto practiced,is carried by the revolution of the rollers D and E,round which the endless chains or belts revolve, over the face of themain cylinder-card about the same distance usually covered by the wholeof the top cards of the common machine, and is then carried upward andover the roller V, the teeth of the card projecting upward or outward.Immediately before passing the roller V each top card is stripped by thestrippingcard L, which being attached at the endsto sweeps, as at K,moved by a crank H, passes over and strips each top card in succession,and, passing over the cleaning-card M in its forward motion, pushes thedirt and waste out of cleaning-card over onto the top of the box U,andinits returning motion is itself stripped and cleaned by thecleaning-card.

The advantages of this improvement over the mode of stripping by handhitherto practiced consists in the saving of labor and in the perfectregularity with which the cards will be stripped and in the facilitywith which by exchanging the pinion-gear S for a larger or smaller onethe top cards may be made to revolve more or less rapidly over therollers and stripped more or less frequently, as the quality of thematerial to be carded may require.

TVhat we claim as our invention, and desire to secure by Letters Patent,is-

The attaching or fastening the top card of the cardingmachine torevolving endless chains or belts instead of securing them to the frameof the machine and making them stationary, as'heretofore practiced, asherein purpose of stripping the top cards by power described, and theapplication of such' chains when placed in such position, as herein deorbelts, in combination with the rollers and scribed.

adjusting-screws and segments of a circle, to EBENE CRANE the purpose ofoonveylng` the top cards of the ALANSON CRANE carding-macliine to andplacing them in a posit-ion where they can be stripped by power,Witnesses and the combination of the sweeps and strip- B. F. BOYNTON,

pin g and cleaning cards and cranks for the THOMAS MILNES.

